llvm-6502/test/CodeGen/ARM/vcgt.ll
Evan Cheng 0a942dbb1e Intrinsics which do a vector compare (results are all zero or all ones) are modeled as icmp / fcmp + sext. This is turned into a vsetcc by dag combine (yes, not a good long term solution). The targets can then isel the vsetcc to the appropriate instruction.
The trouble arises when the result of a vector cmp + sext is then and'ed with all ones. Instcombine will turn it into a vector cmp + zext, dag combiner will miss turning it into a vsetcc and hell breaks loose after that.

Teach dag combine to turn a vector cpm + zest into a vsetcc + and 1. This fixes rdar://7923010.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104094 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-19 01:08:17 +00:00

176 lines
4.8 KiB
LLVM

; RUN: llc < %s -march=arm -mattr=+neon | FileCheck %s
define <8 x i8> @vcgts8(<8 x i8>* %A, <8 x i8>* %B) nounwind {
;CHECK: vcgts8:
;CHECK: vcgt.s8
%tmp1 = load <8 x i8>* %A
%tmp2 = load <8 x i8>* %B
%tmp3 = icmp sgt <8 x i8> %tmp1, %tmp2
%tmp4 = sext <8 x i1> %tmp3 to <8 x i8>
ret <8 x i8> %tmp4
}
define <4 x i16> @vcgts16(<4 x i16>* %A, <4 x i16>* %B) nounwind {
;CHECK: vcgts16:
;CHECK: vcgt.s16
%tmp1 = load <4 x i16>* %A
%tmp2 = load <4 x i16>* %B
%tmp3 = icmp sgt <4 x i16> %tmp1, %tmp2
%tmp4 = sext <4 x i1> %tmp3 to <4 x i16>
ret <4 x i16> %tmp4
}
define <2 x i32> @vcgts32(<2 x i32>* %A, <2 x i32>* %B) nounwind {
;CHECK: vcgts32:
;CHECK: vcgt.s32
%tmp1 = load <2 x i32>* %A
%tmp2 = load <2 x i32>* %B
%tmp3 = icmp sgt <2 x i32> %tmp1, %tmp2
%tmp4 = sext <2 x i1> %tmp3 to <2 x i32>
ret <2 x i32> %tmp4
}
define <8 x i8> @vcgtu8(<8 x i8>* %A, <8 x i8>* %B) nounwind {
;CHECK: vcgtu8:
;CHECK: vcgt.u8
%tmp1 = load <8 x i8>* %A
%tmp2 = load <8 x i8>* %B
%tmp3 = icmp ugt <8 x i8> %tmp1, %tmp2
%tmp4 = sext <8 x i1> %tmp3 to <8 x i8>
ret <8 x i8> %tmp4
}
define <4 x i16> @vcgtu16(<4 x i16>* %A, <4 x i16>* %B) nounwind {
;CHECK: vcgtu16:
;CHECK: vcgt.u16
%tmp1 = load <4 x i16>* %A
%tmp2 = load <4 x i16>* %B
%tmp3 = icmp ugt <4 x i16> %tmp1, %tmp2
%tmp4 = sext <4 x i1> %tmp3 to <4 x i16>
ret <4 x i16> %tmp4
}
define <2 x i32> @vcgtu32(<2 x i32>* %A, <2 x i32>* %B) nounwind {
;CHECK: vcgtu32:
;CHECK: vcgt.u32
%tmp1 = load <2 x i32>* %A
%tmp2 = load <2 x i32>* %B
%tmp3 = icmp ugt <2 x i32> %tmp1, %tmp2
%tmp4 = sext <2 x i1> %tmp3 to <2 x i32>
ret <2 x i32> %tmp4
}
define <2 x i32> @vcgtf32(<2 x float>* %A, <2 x float>* %B) nounwind {
;CHECK: vcgtf32:
;CHECK: vcgt.f32
%tmp1 = load <2 x float>* %A
%tmp2 = load <2 x float>* %B
%tmp3 = fcmp ogt <2 x float> %tmp1, %tmp2
%tmp4 = sext <2 x i1> %tmp3 to <2 x i32>
ret <2 x i32> %tmp4
}
define <16 x i8> @vcgtQs8(<16 x i8>* %A, <16 x i8>* %B) nounwind {
;CHECK: vcgtQs8:
;CHECK: vcgt.s8
%tmp1 = load <16 x i8>* %A
%tmp2 = load <16 x i8>* %B
%tmp3 = icmp sgt <16 x i8> %tmp1, %tmp2
%tmp4 = sext <16 x i1> %tmp3 to <16 x i8>
ret <16 x i8> %tmp4
}
define <8 x i16> @vcgtQs16(<8 x i16>* %A, <8 x i16>* %B) nounwind {
;CHECK: vcgtQs16:
;CHECK: vcgt.s16
%tmp1 = load <8 x i16>* %A
%tmp2 = load <8 x i16>* %B
%tmp3 = icmp sgt <8 x i16> %tmp1, %tmp2
%tmp4 = sext <8 x i1> %tmp3 to <8 x i16>
ret <8 x i16> %tmp4
}
define <4 x i32> @vcgtQs32(<4 x i32>* %A, <4 x i32>* %B) nounwind {
;CHECK: vcgtQs32:
;CHECK: vcgt.s32
%tmp1 = load <4 x i32>* %A
%tmp2 = load <4 x i32>* %B
%tmp3 = icmp sgt <4 x i32> %tmp1, %tmp2
%tmp4 = sext <4 x i1> %tmp3 to <4 x i32>
ret <4 x i32> %tmp4
}
define <16 x i8> @vcgtQu8(<16 x i8>* %A, <16 x i8>* %B) nounwind {
;CHECK: vcgtQu8:
;CHECK: vcgt.u8
%tmp1 = load <16 x i8>* %A
%tmp2 = load <16 x i8>* %B
%tmp3 = icmp ugt <16 x i8> %tmp1, %tmp2
%tmp4 = sext <16 x i1> %tmp3 to <16 x i8>
ret <16 x i8> %tmp4
}
define <8 x i16> @vcgtQu16(<8 x i16>* %A, <8 x i16>* %B) nounwind {
;CHECK: vcgtQu16:
;CHECK: vcgt.u16
%tmp1 = load <8 x i16>* %A
%tmp2 = load <8 x i16>* %B
%tmp3 = icmp ugt <8 x i16> %tmp1, %tmp2
%tmp4 = sext <8 x i1> %tmp3 to <8 x i16>
ret <8 x i16> %tmp4
}
define <4 x i32> @vcgtQu32(<4 x i32>* %A, <4 x i32>* %B) nounwind {
;CHECK: vcgtQu32:
;CHECK: vcgt.u32
%tmp1 = load <4 x i32>* %A
%tmp2 = load <4 x i32>* %B
%tmp3 = icmp ugt <4 x i32> %tmp1, %tmp2
%tmp4 = sext <4 x i1> %tmp3 to <4 x i32>
ret <4 x i32> %tmp4
}
define <4 x i32> @vcgtQf32(<4 x float>* %A, <4 x float>* %B) nounwind {
;CHECK: vcgtQf32:
;CHECK: vcgt.f32
%tmp1 = load <4 x float>* %A
%tmp2 = load <4 x float>* %B
%tmp3 = fcmp ogt <4 x float> %tmp1, %tmp2
%tmp4 = sext <4 x i1> %tmp3 to <4 x i32>
ret <4 x i32> %tmp4
}
define <2 x i32> @vacgtf32(<2 x float>* %A, <2 x float>* %B) nounwind {
;CHECK: vacgtf32:
;CHECK: vacgt.f32
%tmp1 = load <2 x float>* %A
%tmp2 = load <2 x float>* %B
%tmp3 = call <2 x i32> @llvm.arm.neon.vacgtd(<2 x float> %tmp1, <2 x float> %tmp2)
ret <2 x i32> %tmp3
}
define <4 x i32> @vacgtQf32(<4 x float>* %A, <4 x float>* %B) nounwind {
;CHECK: vacgtQf32:
;CHECK: vacgt.f32
%tmp1 = load <4 x float>* %A
%tmp2 = load <4 x float>* %B
%tmp3 = call <4 x i32> @llvm.arm.neon.vacgtq(<4 x float> %tmp1, <4 x float> %tmp2)
ret <4 x i32> %tmp3
}
; rdar://7923010
define <4 x i32> @vcgt_zext(<4 x float>* %A, <4 x float>* %B) nounwind {
;CHECK: vcgt_zext:
;CHECK: vcgt.f32 q0
;CHECK: vmov.i32 q1, #0x1
;CHECK: vand q0, q0, q1
%tmp1 = load <4 x float>* %A
%tmp2 = load <4 x float>* %B
%tmp3 = fcmp ogt <4 x float> %tmp1, %tmp2
%tmp4 = zext <4 x i1> %tmp3 to <4 x i32>
ret <4 x i32> %tmp4
}
declare <2 x i32> @llvm.arm.neon.vacgtd(<2 x float>, <2 x float>) nounwind readnone
declare <4 x i32> @llvm.arm.neon.vacgtq(<4 x float>, <4 x float>) nounwind readnone